Gregory CLEMENT [Mon, 12 Jun 2017 15:35:00 +0000 (17:35 +0200)]
arm64: dts: marvell: add gpio support for Armada 7K/8K
Enable gpio support for CP and AP on the Marvell Armada 7K/8K SoCs.
The Armada 8K has two CP110 blocks, each having two GPIO controllers.
However, in each CP110 block, one of the GPIO controller cannot be
used: in the master CP110, only the second GPIO controller can be used,
while on the slave CP110, only the first GPIO controller can be used.
On the other side, the Armada 7K has only one CP110, but both its GPIO
controllers can be used.
For this reason, the GPIO controllers are marked as "disabled" in the
armada-cp110-master.dtsi and armada-cp110-slave.dtsi files, and only
enabled in the per-SoC dtsi files.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Gregory CLEMENT [Mon, 12 Jun 2017 15:34:58 +0000 (17:34 +0200)]
arm64: dts: marvell: add pinctrl support for Armada 7K/8K
Enable pinctrl support for CP and AP on the Armada 7K/8K SoCs.
The CP master being different between Armada 7k and Armada 8k. This
commit introduces the intermediates files armada-70x0.dtsi and
armada-80x0.dtsi.
These new files will provide different compatible strings depending of
the SoC family. They will also be the location for the pinmux
configuration at the SoC level.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Gregory CLEMENT [Thu, 1 Jun 2017 14:55:42 +0000 (16:55 +0200)]
arm64: dts: marvell: use new binding for the system controller on cp110
The new binding for the system controller on cp110 moved the clock
controller into a subnode. This preliminary step will allow to add gpio
and pinctrl subnodes.
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Gregory CLEMENT [Thu, 1 Jun 2017 14:55:41 +0000 (16:55 +0200)]
arm64: dts: marvell: remove *-clock-output-names on cp110
The *-clock-output-names of the cp110-system-controller0 node are not
used anymore, so remove them.
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Antoine Tenart [Tue, 20 Jun 2017 06:38:38 +0000 (08:38 +0200)]
arm64: dts: marvell: use new bindings for xor clocks on ap806
New bindings are used for the system controller on the ap806, which
means all clock properties must be converted. Use the new bindings in
the xor nodes.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Antoine Tenart [Mon, 19 Jun 2017 07:37:29 +0000 (09:37 +0200)]
arm64: dts: marvell: mcbin: enable the mdio node
Since the mdio nodes are disabled by default now, we should explicitly
enable these nodes at the board level when they are used. Enable the
cpm_mdio node for the 8040-mcbin.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Antoine Tenart [Thu, 15 Jun 2017 14:43:26 +0000 (16:43 +0200)]
arm64: dts: marvell: add xmdio nodes for 7k/8k
Add the description of the xMDIO bus for the Marvell Armada 7k and
Marvell Armada 8k; for both CP110 slave and master. This bus is found
on Marvell Ethernet controllers and provides an interface with the
xMDIO bus.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Antoine Tenart [Thu, 15 Jun 2017 12:10:04 +0000 (14:10 +0200)]
arm64: dts: marvell: add a comment on the cp110 slave node status
The cryptographic engine found on the cp110 slave is disabled by default
because of some known limitations. Add a comment to explain why it is
disabled by default.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Antoine Tenart [Thu, 15 Jun 2017 12:10:03 +0000 (14:10 +0200)]
arm64: dts: marvell: remove cpm crypto nodes from dts files
The cryptographic engine on the master cp110 is now enabled by default
at the SoC level. Remove its dts nodes that were only enabling it.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Antoine Tenart [Thu, 15 Jun 2017 12:10:02 +0000 (14:10 +0200)]
arm64: dts: marvell: cp110: enable the crypto engine at the SoC level
Enable the cryptographic engine at the SoC level on the master cp110.
This engine is always present and do not depends on any pinmux
configuration.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Gregory CLEMENT [Thu, 8 Jun 2017 10:29:51 +0000 (12:29 +0200)]
arm64: dts: marvell: armada-3720-db: Add vqmmc regulator for SD slot
By adding this regulator, the SD cards are usable at higher speed
protocols such as SDR104.
This patch was tested with an SD HC card compatible with UHS-I.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Konstantin Porotchkin [Tue, 23 May 2017 13:11:40 +0000 (16:11 +0300)]
arm64: dts: marvell: Enable second SDHCI controller in Armada 37xx
The Armada 37xx SoCs has 2 SDHCI interfaces. This patch adds the second
one.
Moreover, the Armada 37xx DB v2 board populates the 2 SDHCI interfaces.
The second interface is using pluggable module that can either
have an SD connector or eMMC on it.
This patch adds support for SD module in the device DT.
[ gregory.clement@free-electrons.com:
- Add more detail in commit log
- Sort the dt node in address order
- Document the SD slot in the dts ]
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Gregory CLEMENT [Tue, 13 Jun 2017 12:25:46 +0000 (14:25 +0200)]
arm64: dts: marvell: armada-37xx: Use angle bracket for each register set
When several groups of register address and size are used with reg, then
surround each one by angle bracket.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Gregory CLEMENT [Tue, 13 Jun 2017 10:34:03 +0000 (12:34 +0200)]
arm64: dts: marvell: armada-37xx: Align the compatible string
This cosmetic patch aligns the compatible string when there are on
several lines.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Gregory CLEMENT [Thu, 8 Jun 2017 13:51:56 +0000 (15:51 +0200)]
arm64: dts: marvell: armada-3720-db: Add information about the V2 board
The initial device tree file was for the board V1.4. Now the V2.0 board
is also available. The same dtb will work for both, but the CON number
have changed, so update the comment in the dts to reflect this.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Gregory CLEMENT [Thu, 8 Jun 2017 10:56:23 +0000 (12:56 +0200)]
arm64: dts: marvell: armada-3720-db: Sort the dts node alphabetically
Sort the reference nodes in alphabetical order to ease the merge of
future nodes.
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Antoine Tenart [Thu, 8 Jun 2017 10:04:55 +0000 (12:04 +0200)]
arm64: dts: marvell: disable the mdio nodes by default
Disable the mdio nodes by default in the cp110 slave and master dtsi as
they're not wired on every board.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Antoine Tenart [Thu, 8 Jun 2017 10:04:54 +0000 (12:04 +0200)]
arm64: dts: marvell: explicitly enable the mdio nodes for 7k/8k DB
Explicitly enable the MDIO nodes in the Marvell Armada 7k DB and Marvell
Armada 8k DB. This is needed as the MDIO nodes will be disabled in the
CP 110 slave and master dtsi by a following up patch.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Antoine Tenart [Wed, 24 May 2017 14:10:33 +0000 (16:10 +0200)]
arm64: dts: marvell: add dma-mask in crypto nodes for 7k/8k
The EIP197 cryptographic engine supports 64 bits address width but is
limited to 40 bits on 7k/8k. Add a dma-mask property in the
cryptographic engine nodes to reflect this.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Marc Zyngier [Thu, 8 Jun 2017 10:42:43 +0000 (11:42 +0100)]
arm64: dts: marvell: 8040-mcbin: Enable 1GB Ethernet
Enable the 1GB Ethernet interface that lives on the slave CP110,
with its corresponding phy (that oddly lives on the master CP110).
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Russell King [Tue, 6 Jun 2017 09:57:15 +0000 (11:57 +0200)]
arm64: dts: marvell: cp110: add required clocks for mdio interface
Add the three required clocks for the MDIO interface to be functional
on Armada 8k platforms. Without this, the CPU hangs, causing RCU
stalls or the system to become unresponsive.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
[Thomas:
- remove mg_core_clock, since it's a parent of mg_clock
- also add clock references to the slave CP mdio instance]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Gregory CLEMENT [Wed, 31 May 2017 14:07:28 +0000 (16:07 +0200)]
arm64: dts: marvell: use new binding for the system controller on ap806
The new binding for the system controller on ap806 moved the clock into a
subnode. This preliminary step will allow to add gpio and pinctrl
subnodes
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Gregory CLEMENT [Wed, 31 May 2017 14:07:27 +0000 (16:07 +0200)]
arm64: dts: marvell: remove clock-output-names on ap806
The clock-output-names of the ap806-system-controller node are not used
anymore, so remove them.
Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Marcin Wojtas [Mon, 15 May 2017 23:28:33 +0000 (01:28 +0200)]
arm64: dts: marvell: add second 1G port on the Armada 8040 DB
Armada 8040 DB is equipped with 4 (2x 10G SFI + 2x 1G RGMII)
ethernet ports of which only one was hitherto enabled.
Because currently mvpp2 driver is capable of supporting only
1G RGMII/SGMII, enable second port from CP slave HW block.
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Russell King [Tue, 16 May 2017 13:45:30 +0000 (14:45 +0100)]
arm64: dts: marvell: mcbin: add sdhci
Add sdhci support for MACCHIATOBin boards. This uses the AP806 SDHCI
for eMMC and CP110 master for the SD card slot.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Thomas Petazzoni [Fri, 5 May 2017 09:55:08 +0000 (11:55 +0200)]
arm64: dts: marvell: add clocks for Armada AP806 XOR engines
The XORv2 engines in the AP side of the Armada 7K/8K SoCs are using the
AP MS core clock as input, so this commit adds the appropriate clocks
properties.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Linus Torvalds [Mon, 22 May 2017 02:30:23 +0000 (19:30 -0700)]
Linux 4.12-rc2
Linus Torvalds [Mon, 22 May 2017 01:26:54 +0000 (18:26 -0700)]
x86: fix 32-bit case of __get_user_asm_u64()
The code to fetch a 64-bit value from user space was entirely buggered,
and has been since the code was merged in early 2016 in commit
b2f680380ddf ("x86/mm/32: Add support for 64-bit __get_user() on 32-bit
kernels").
Happily the buggered routine is almost certainly entirely unused, since
the normal way to access user space memory is just with the non-inlined
"get_user()", and the inlined version didn't even historically exist.
The normal "get_user()" case is handled by external hand-written asm in
arch/x86/lib/getuser.S that doesn't have either of these issues.
There were two independent bugs in __get_user_asm_u64():
- it still did the STAC/CLAC user space access marking, even though
that is now done by the wrapper macros, see commit
11f1a4b9755f
("x86: reorganize SMAP handling in user space accesses").
This didn't result in a semantic error, it just means that the
inlined optimized version was hugely less efficient than the
allegedly slower standard version, since the CLAC/STAC overhead is
quite high on modern Intel CPU's.
- the double register %eax/%edx was marked as an output, but the %eax
part of it was touched early in the asm, and could thus clobber other
inputs to the asm that gcc didn't expect it to touch.
In particular, that meant that the generated code could look like
this:
mov (%eax),%eax
mov 0x4(%eax),%edx
where the load of %edx obviously was _supposed_ to be from the 32-bit
word that followed the source of %eax, but because %eax was
overwritten by the first instruction, the source of %edx was
basically random garbage.
The fixes are trivial: remove the extraneous STAC/CLAC entries, and mark
the 64-bit output as early-clobber to let gcc know that no inputs should
alias with the output register.
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Benjamin LaHaise <bcrl@kvack.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: stable@kernel.org # v4.8+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 21 May 2017 22:25:46 +0000 (15:25 -0700)]
Clean up x86 unsafe_get/put_user() type handling
Al noticed that unsafe_put_user() had type problems, and fixed them in
commit
a7cc722fff0b ("fix unsafe_put_user()"), which made me look more
at those functions.
It turns out that unsafe_get_user() had a type issue too: it limited the
largest size of the type it could handle to "unsigned long". Which is
fine with the current users, but doesn't match our existing normal
get_user() semantics, which can also handle "u64" even when that does
not fit in a long.
While at it, also clean up the type cast in unsafe_put_user(). We
actually want to just make it an assignment to the expected type of the
pointer, because we actually do want warnings from types that don't
convert silently. And it makes the code more readable by not having
that one very long and complex line.
[ This patch might become stable material if we ever end up back-porting
any new users of the unsafe uaccess code, but as things stand now this
doesn't matter for any current existing uses. ]
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 21 May 2017 19:06:44 +0000 (12:06 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs
Pull misc uaccess fixes from Al Viro:
"Fix for unsafe_put_user() (no callers currently in mainline, but
anyone starting to use it will step into that) + alpha osf_wait4()
infoleak fix"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
osf_wait4(): fix infoleak
fix unsafe_put_user()
Linus Torvalds [Sun, 21 May 2017 18:52:00 +0000 (11:52 -0700)]
Merge branch 'sched-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull scheduler fix from Thomas Gleixner:
"A single scheduler fix:
Prevent idle task from ever being preempted. That makes sure that
synchronize_rcu_tasks() which is ignoring idle task does not pretend
that no task is stuck in preempted state. If that happens and idle was
preempted on a ftrace trampoline the machine crashes due to
inconsistent state"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/core: Call __schedule() from do_idle() without enabling preemption
Linus Torvalds [Sun, 21 May 2017 18:45:26 +0000 (11:45 -0700)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner:
"A set of small fixes for the irq subsystem:
- Cure a data ordering problem with chained interrupts
- Three small fixlets for the mbigen irq chip"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq: Fix chained interrupt data ordering
irqchip/mbigen: Fix the clear register offset calculation
irqchip/mbigen: Fix potential NULL dereferencing
irqchip/mbigen: Fix memory mapping code
Al Viro [Mon, 15 May 2017 01:47:25 +0000 (21:47 -0400)]
osf_wait4(): fix infoleak
failing sys_wait4() won't fill struct rusage...
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sun, 21 May 2017 17:08:42 +0000 (13:08 -0400)]
fix unsafe_put_user()
__put_user_size() relies upon its first argument having the same type as what
the second one points to; the only other user makes sure of that and
unsafe_put_user() should do the same.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Sun, 21 May 2017 06:39:03 +0000 (23:39 -0700)]
Merge tag 'trace-v4.12-rc1' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
- Fix a bug caused by not cleaning up the new instance unique triggers
when deleting an instance. It also creates a selftest that triggers
that bug.
- Fix the delayed optimization happening after kprobes boot up self
tests being removed by freeing of init memory.
- Comment kprobes on why the delay optimization is not a problem for
removal of modules, to keep other developers from searching that
riddle.
- Fix another case of rcu not watching in stack trace tracing.
* tag 'trace-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Make sure RCU is watching before calling a stack trace
kprobes: Document how optimized kprobes are removed from module unload
selftests/ftrace: Add test to remove instance with active event triggers
selftests/ftrace: Fix bashisms
ftrace: Remove #ifdef from code and add clear_ftrace_function_probes() stub
ftrace/instances: Clear function triggers when removing instances
ftrace: Simplify glob handling in unregister_ftrace_function_probe_func()
tracing/kprobes: Enforce kprobes teardown after testing
tracing: Move postpone selftests to core from early_initcall
Linus Torvalds [Sat, 20 May 2017 23:12:30 +0000 (16:12 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A small collection of fixes that should go into this cycle.
- a pull request from Christoph for NVMe, which ended up being
manually applied to avoid pulling in newer bits in master. Mostly
fibre channel fixes from James, but also a few fixes from Jon and
Vijay
- a pull request from Konrad, with just a single fix for xen-blkback
from Gustavo.
- a fuseblk bdi fix from Jan, fixing a regression in this series with
the dynamic backing devices.
- a blktrace fix from Shaohua, replacing sscanf() with kstrtoull().
- a request leak fix for drbd from Lars, fixing a regression in the
last series with the kref changes. This will go to stable as well"
* 'for-linus' of git://git.kernel.dk/linux-block:
nvmet: release the sq ref on rdma read errors
nvmet-fc: remove target cpu scheduling flag
nvme-fc: stop queues on error detection
nvme-fc: require target or discovery role for fc-nvme targets
nvme-fc: correct port role bits
nvme: unmap CMB and remove sysfs file in reset path
blktrace: fix integer parse
fuseblk: Fix warning in super_setup_bdi_name()
block: xen-blkback: add null check to avoid null pointer dereference
drbd: fix request leak introduced by locking/atomic, kref: Kill kref_sub()
Vijay Immanuel [Mon, 8 May 2017 23:38:35 +0000 (16:38 -0700)]
nvmet: release the sq ref on rdma read errors
On rdma read errors, release the sq ref that was taken
when the req was initialized. This avoids a hang in
nvmet_sq_destroy() when the queue is being freed.
Signed-off-by: Vijay Immanuel <vijayi@attalasystems.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
James Smart [Tue, 25 Apr 2017 23:23:09 +0000 (16:23 -0700)]
nvmet-fc: remove target cpu scheduling flag
Remove NVMET_FCTGTFEAT_NEEDS_CMD_CPUSCHED. It's unnecessary.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
James Smart [Tue, 25 Apr 2017 22:32:01 +0000 (15:32 -0700)]
nvme-fc: stop queues on error detection
Per the recommendation by Sagi on:
http://lists.infradead.org/pipermail/linux-nvme/2017-April/009261.html
Rather than waiting for reset work thread to stop queues and abort the ios,
immediately stop the queues on error detection. Reset thread will restop
the queues (as it's called on other paths), but it does not appear to have
a side effect.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
James Smart [Fri, 5 May 2017 23:13:15 +0000 (16:13 -0700)]
nvme-fc: require target or discovery role for fc-nvme targets
In order to create an association, the remoteport must be
serving either a target role or a discovery role.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
James Smart [Fri, 5 May 2017 23:13:02 +0000 (16:13 -0700)]
nvme-fc: correct port role bits
FC Port roles is a bit mask, not individual values.
Correct nvme definitions to unique bits.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Jon Derrick [Fri, 5 May 2017 20:52:06 +0000 (14:52 -0600)]
nvme: unmap CMB and remove sysfs file in reset path
CMB doesn't get unmapped until removal while getting remapped on every
reset. Add the unmapping and sysfs file removal to the reset path in
nvme_pci_disable to match the mapping path in nvme_pci_enable.
Fixes:
202021c1a ("nvme : Add sysfs entry for NVMe CMBs when appropriate")
Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Acked-by: Keith Busch <keith.busch@intel.com>
Reviewed-By: Stephen Bates <sbates@raithlin.com>
Cc: <stable@vger.kernel.org> # 4.9+
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Linus Torvalds [Sat, 20 May 2017 16:02:27 +0000 (09:02 -0700)]
Merge tag 'staging-4.12-rc2' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are a number of staging driver fixes for 4.12-rc2
Most of them are typec driver fixes found by reviewers and users of
the code. There are also some removals of files no longer needed in
the tree due to the ion driver rewrite in 4.12-rc1, as well as some
wifi driver fixes. And to round it out, a MAINTAINERS file update.
All have been in linux-next with no reported issues"
* tag 'staging-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (22 commits)
MAINTAINERS: greybus-dev list is members-only
staging: fsl-dpaa2/eth: add ETHERNET dependency
staging: typec: fusb302: refactor resume retry mechanism
staging: typec: fusb302: reset i2c_busy state in error
staging: rtl8723bs: remove re-positioned call to kfree in os_dep/ioctl_cfg80211.c
staging: rtl8192e: GetTs Fix invalid TID 7 warning.
staging: rtl8192e: rtl92e_get_eeprom_size Fix read size of EPROM_CMD.
staging: rtl8192e: fix 2 byte alignment of register BSSIDR.
staging: rtl8192e: rtl92e_fill_tx_desc fix write to mapped out memory.
staging: vc04_services: Fix bulk cache maintenance
staging: ccree: remove extraneous spin_unlock_bh() in error handler
staging: typec: Fix sparse warnings about incorrect types
staging: typec: fusb302: do not free gpio from managed resource
staging: typec: tcpm: Fix Port Power Role field in PS_RDY messages
staging: typec: tcpm: Respond to Discover Identity commands
staging: typec: tcpm: Set correct flags in PD request messages
staging: typec: tcpm: Drop duplicate PD messages
staging: typec: fusb302: Fix chip->vbus_present init value
staging: typec: fusb302: Fix module autoload
staging: typec: tcpci: declare private structure as static
...
Linus Torvalds [Sat, 20 May 2017 15:52:34 +0000 (08:52 -0700)]
Merge tag 'usb-4.12-rc2' of git://git./linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a number of small USB fixes for 4.12-rc2
Most of them come from Johan, in his valiant quest to fix up all
drivers that could be affected by "malicious" USB devices. There's
also some fixes for more "obscure" drivers to handle some of the
vmalloc stack fallout (which for USB drivers, was always the case, but
very few people actually ran those systems...)
Other than that, the normal set of xhci and gadget and musb driver
fixes as well.
All have been in linux-next with no reported issues"
* tag 'usb-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (42 commits)
usb: musb: tusb6010_omap: Do not reset the other direction's packet size
usb: musb: Fix trying to suspend while active for OTG configurations
usb: host: xhci-plat: propagate return value of platform_get_irq()
xhci: Fix command ring stop regression in 4.11
xhci: remove GFP_DMA flag from allocation
USB: xhci: fix lock-inversion problem
usb: host: xhci-ring: don't need to clear interrupt pending for MSI enabled hcd
usb: host: xhci-mem: allocate zeroed Scratchpad Buffer
xhci: apply PME_STUCK_QUIRK and MISSING_CAS quirk for Denverton
usb: xhci: trace URB before giving it back instead of after
USB: serial: qcserial: add more Lenovo EM74xx device IDs
USB: host: xhci: use max-port define
USB: hub: fix SS max number of ports
USB: hub: fix non-SS hub-descriptor handling
USB: hub: fix SS hub-descriptor handling
USB: usbip: fix nonconforming hub descriptor
USB: gadget: dummy_hcd: fix hub-descriptor removable fields
doc-rst: fixed kernel-doc directives in usb/typec.rst
USB: core: of: document reference taken by companion helper
USB: ehci-platform: fix companion-device leak
...
Linus Torvalds [Sat, 20 May 2017 15:44:22 +0000 (08:44 -0700)]
Merge tag 'char-misc-4.12-rc2' of git://git./linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are five small bugfixes for reported issues with 4.12-rc1 and
earlier kernels. Nothing huge here, just a lp, mem, vpd, and uio
driver fix, along with a Kconfig fixup for one of the misc drivers.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
firmware: Google VPD: Fix memory allocation error handling
drivers: char: mem: Check for address space wraparound with mmap()
uio: fix incorrect memory leak cleanup
misc: pci_endpoint_test: select CRC32
char: lp: fix possible integer overflow in lp_setup()
Linus Torvalds [Sat, 20 May 2017 15:35:27 +0000 (08:35 -0700)]
Merge git://www.linux-watchdog.org/linux-watchdog
Pull watchdog fixes from Wim Van Sebroeck:
- orion_wdt compile-test dependencies
- sama5d4_wdt: WDDIS handling and a race confition
- pcwd_usb: fix NULL-deref at probe
- cadence_wdt: fix timeout setting
- wdt_pci: fix build error if SOFTWARE_REBOOT is defined
- iTCO_wdt: all versions count down twice
- zx2967: remove redundant dev_err call in zx2967_wdt_probe()
- bcm281xx: Fix use of uninitialized spinlock
* git://www.linux-watchdog.org/linux-watchdog:
watchdog: bcm281xx: Fix use of uninitialized spinlock.
watchdog: zx2967: remove redundant dev_err call in zx2967_wdt_probe()
iTCO_wdt: all versions count down twice
watchdog: wdt_pci: fix build error if define SOFTWARE_REBOOT
watchdog: cadence_wdt: fix timeout setting
watchdog: pcwd_usb: fix NULL-deref at probe
watchdog: sama5d4: fix race condition
watchdog: sama5d4: fix WDDIS handling
watchdog: orion: fix compile-test dependencies
Linus Torvalds [Sat, 20 May 2017 15:29:30 +0000 (08:29 -0700)]
Merge tag 'drm-fixes-for-v4.12-rc2' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Mostly nouveau and i915, fairly quiet as usual for rc2"
* tag 'drm-fixes-for-v4.12-rc2' of git://people.freedesktop.org/~airlied/linux:
drm/atmel-hlcdc: Fix output initialization
gpu: host1x: select IOMMU_IOVA
drm/nouveau/fifo/gk104-: Silence a locking warning
drm/nouveau/secboot: plug memory leak in ls_ucode_img_load_gr() error path
drm/nouveau: Fix drm poll_helper handling
drm/i915: don't do allocate_va_range again on PIN_UPDATE
drm/i915: Fix rawclk readout for g4x
drm/i915: Fix runtime PM for LPE audio
drm/i915/glk: Fix DSI "*ERROR* ULPS is still active" messages
drm/i915/gvt: avoid unnecessary vgpu switch
drm/i915/gvt: not to restore in-context mmio
drm/etnaviv: don't put fence in case of submit failure
drm/i915/gvt: fix typo: "supporte" -> "support"
drm: hdlcd: Fix the calculation of the scanout start address
Linus Torvalds [Sat, 20 May 2017 00:46:51 +0000 (17:46 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is the first sweep of mostly minor fixes. There's one security
one: the read past the end of a buffer in qedf, and a panic fix for
lpfc SLI-3 adapters, but the rest are a set of include and build
dependency tidy ups and assorted other small fixes and updates"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: pmcraid: remove redundant check to see if request_size is less than zero
scsi: lpfc: ensure els_wq is being checked before destroying it
scsi: cxlflash: Select IRQ_POLL
scsi: qedf: Avoid reading past end of buffer
scsi: qedf: Cleanup the type of io_log->op
scsi: lpfc: double lock typo in lpfc_ns_rsp()
scsi: qedf: properly update arguments position in function call
scsi: scsi_lib: Add #include <scsi/scsi_transport.h>
scsi: MAINTAINERS: update OSD entries
scsi: Skip deleted devices in __scsi_device_lookup
scsi: lpfc: Fix panic on BFS configuration
scsi: libfc: do not flood console with messages 'libfc: queue full ...'
Linus Torvalds [Sat, 20 May 2017 00:35:34 +0000 (17:35 -0700)]
Merge branch 'libnvdimm-for-next' of git://git./linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A couple of compile fixes.
With the removal of the ->direct_access() method from
block_device_operations in favor of a new dax_device + dax_operations
we broke two configurations.
The CONFIG_BLOCK=n case is fixed by compiling out the block+dax
helpers in the dax core. Configurations with FS_DAX=n EXT4=y / XFS=y
and DAX=m fail due to the helpers the builtin filesystem needs being
in a module, so we stub out the helpers in the FS_DAX=n case."
* 'libnvdimm-for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
dax, xfs, ext4: compile out iomap-dax paths in the FS_DAX=n case
dax: fix false CONFIG_BLOCK dependency
Linus Torvalds [Sat, 20 May 2017 00:33:08 +0000 (17:33 -0700)]
Merge branch 'i2c/for-current' of git://git./linux/kernel/git/wsa/linux
Pull i2c fix from Wolfram Sang:
"A regression fix for I2C that would be great to have in rc2"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: designware: don't infer timings described by ACPI from clock rate
Linus Torvalds [Sat, 20 May 2017 00:27:28 +0000 (17:27 -0700)]
Merge tag 'iommu-fixes-v4.12-rc1' of git://git./linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
- another compile-fix as a fallout of the recent header-file cleanup
- add a missing IO/TLB flush to the Intel VT-d kdump code path
- a fix for ARM64 dma code to only access initialized iova_domain
members
* tag 'iommu-fixes-v4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/mediatek: Include linux/dma-mapping.h
iommu/vt-d: Flush the IOTLB to get rid of the initial kdump mappings
iommu/dma: Don't touch invalid iova_domain members
Linus Torvalds [Fri, 19 May 2017 22:13:13 +0000 (15:13 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- a fix for a build failure introduced in -rc1 when tracepoints are
enabled on 32-bit ARM.
- disable use of stack pointer protection in the hyp code which can
cause panics.
- a handful of VGIC fixes.
- a fix to the init of the redistributors on GICv3 systems that
prevented boot with kvmtool on GICv3 systems introduced in -rc1.
- a number of race conditions fixed in our MMU handling code.
- a fix for the guest being able to program the debug extensions for
the host on the 32-bit side.
PPC:
- fixes for build failures with PR KVM configurations.
- a fix for a host crash that can occur on POWER9 with radix guests.
x86:
- fixes for nested PML and nested EPT.
- a fix for crashes caused by reserved bits in SSE MXCSR that could
have been set by userspace.
- an optimization of halt polling that fixes high CPU overhead.
- fixes for four reports from Dan Carpenter's static checker.
- a protection around code that shouldn't have been preemptible.
- a fix for port IO emulation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (27 commits)
KVM: x86: prevent uninitialized variable warning in check_svme()
KVM: x86/vPMU: fix undefined shift in intel_pmu_refresh()
KVM: x86: zero base3 of unusable segments
KVM: X86: Fix read out-of-bounds vulnerability in kvm pio emulation
KVM: x86: Fix potential preemption when get the current kvmclock timestamp
KVM: Silence underflow warning in avic_get_physical_id_entry()
KVM: arm/arm64: Hold slots_lock when unregistering kvm io bus devices
KVM: arm/arm64: Fix bug when registering redist iodevs
KVM: x86: lower default for halt_poll_ns
kvm: arm/arm64: Fix use after free of stage2 page table
kvm: arm/arm64: Force reading uncached stage2 PGD
KVM: nVMX: fix EPT permissions as reported in exit qualification
KVM: VMX: Don't enable EPT A/D feature if EPT feature is disabled
KVM: x86: Fix load damaged SSEx MXCSR register
kvm: nVMX: off by one in vmx_write_pml_buffer()
KVM: arm: rename pm_fake handler to trap_raz_wi
KVM: arm: plug potential guest hardware debug leakage
kvm: arm/arm64: Fix race in resetting stage2 PGD
KVM: arm/arm64: vgic-v3: Use PREbits to infer the number of ICH_APxRn_EL2 registers
KVM: arm/arm64: vgic-v3: Do not use Active+Pending state for a HW interrupt
...
Linus Torvalds [Fri, 19 May 2017 22:06:48 +0000 (15:06 -0700)]
Merge tag 'for-linus-4.12b-rc2-tag' of git://git./linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Some fixes for the new Xen 9pfs frontend and some minor cleanups"
* tag 'for-linus-4.12b-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: make xen_flush_tlb_all() static
xen: cleanup pvh leftovers from pv-only sources
xen/9pfs: p9_trans_xen_init and p9_trans_xen_exit can be static
xen/9pfs: fix return value check in xen_9pfs_front_probe()
Linus Torvalds [Fri, 19 May 2017 22:03:24 +0000 (15:03 -0700)]
Merge tag 'devicetree-fixes-for-4.12' of git://git./linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
- fix missing allocation failure handling in fdt code
- fix dtc compile error on 32-bit hosts
- revert bad sparse changes causing GCC7 warnings
* tag 'devicetree-fixes-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: fdt: add missing allocation-failure check
dtc: check.c fix compile error
Partially Revert "of: fix sparse warnings in fdt, irq, reserved mem, and resolver code"
Linus Torvalds [Fri, 19 May 2017 20:36:56 +0000 (13:36 -0700)]
Merge tag 'armsoc-fixes' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"We had a small batch of fixes before -rc1, but here is a larger one.
It contains a backmerge of 4.12-rc1 since some of the downstream
branches we merge had that as base; at the same time we already had
merged contents before -rc1 and rebase wasn't the right solution.
A mix of random smaller fixes and a few things worth pointing out:
- We've started telling people to avoid cross-tree shared branches if
all they're doing is picking up one or two DT-used constants from a
shared include file, and instead to use the numeric values on first
submission. Follow-up moving over to symbolic names are sent in
right after -rc1, i.e. here. It's only a few minor patches of this
type.
- Linus Walleij and others are resurrecting the 'Gemini' platform,
and wanted a cut-down platform-specific defconfig for it. So I
picked that up for them.
- Rob Herring ran 'savedefconfig' on arm64, it's a bit churny but it
helps people to prepare patches since it's a pain when defconfig
and current savedefconfig contents differs too much.
- Devicetree additions for some pinctrl drivers for Armada that were
merged this window. I'd have preferred to see those earlier but
it's not a huge deail.
The biggest change worth pointing out though since it's touching other
parts of the tree: We added prefixes to be used when cross-including
DT contents between arm64 and arm, allowing someone to #include
<arm/foo.dtsi> from arm64, and likewise. As part of that, we needed
arm/foo.dtsi to work on arm as well. The way I suggested this to Heiko
resulted in a recursive symlink.
Instead, I've now moved it out of arch/*/boot/dts/include, into a
shared location under scripts/dtc. While I was at it, I consolidated
so all architectures now behave the same way in this manner.
Rob Herring (DT maintainer) has acked it. I cc:d most other arch
maintainers but nobody seems to care much; it doesn't really affect
them since functionality is unchanged for them by default"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
arm64: dts: rockchip: fix include reference
firmware: ti_sci: fix strncat length check
ARM: remove duplicate 'const' annotations'
arm64: defconfig: enable options needed for QCom DB410c board
arm64: defconfig: sync with savedefconfig
ARM: configs: add a gemini defconfig
devicetree: Move include prefixes from arch to separate directory
ARM: dts: dra7: Reduce cpu thermal shutdown temperature
memory: omap-gpmc: Fix debug output for access width
ARM: dts: LogicPD Torpedo: Fix camera pin mux
ARM: dts: omap4: enable CEC pin for Pandaboard A4 and ES
ARM: dts: gta04: fix polarity of clocks for mcbsp4
ARM: dts: dra7: Add power hold and power controller properties to palmas
soc: imx: add PM dependency for IMX7_PM_DOMAINS
ARM: dts: imx6sx-sdb: Remove OPP override
ARM: dts: imx53-qsrb: Pulldown PMIC IRQ pin
soc: bcm: brcmstb: Correctly match 7435 SoC
tee: add ARM_SMCCC dependency
ARM: omap2+: make omap4_get_cpu1_ns_pa_addr declaration usable
ARM64: dts: mediatek: configure some fixed mmc parameters
...
Linus Torvalds [Fri, 19 May 2017 20:34:34 +0000 (13:34 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux
Pull arm64 fixes/cleanups from Catalin Marinas:
- Avoid taking a mutex in the secondary CPU bring-up path when
interrupts are disabled
- Ignore perf exclude_hv when the kernel is running in Hyp mode
- Remove redundant instruction in cmpxchg
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64/cpufeature: don't use mutex in bringup path
arm64: perf: Ignore exclude_hv when kernel is running in HYP
arm64: Remove redundant mov from LL/SC cmpxchg
Dave Airlie [Fri, 19 May 2017 20:00:49 +0000 (06:00 +1000)]
Merge branch 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld into drm-fixes
single hdlcd fix
* 'for-upstream/hdlcd' of git://linux-arm.org/linux-ld:
drm: hdlcd: Fix the calculation of the scanout start address
Linus Torvalds [Fri, 19 May 2017 18:31:38 +0000 (11:31 -0700)]
Merge tag 'powerpc-4.12-3' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"The headliner is a fix for FP/VMX register corruption when using
transactional memory, and a new selftest to go with it.
Then there's the virt_addr_valid() fix, currently HARDENDED_USERCOPY
is tripping on that causing some machines to crash.
A few other fairly minor fixes for long tail things, and a couple of
fixes for code we just merged.
Thanks to: Breno Leitao, Gautham Shenoy, Michael Neuling, Naveen Rao.
Nicholas Piggin, Paul Mackerras"
* tag 'powerpc-4.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Fix virt_addr_valid() etc. on 64-bit hash
powerpc/mm: Fix crash in page table dump with huge pages
powerpc/kprobes: Fix handling of instruction emulation on probe re-entry
powerpc/powernv: Set NAPSTATELOST after recovering paca on P9 DD1
selftests/powerpc: Test TM and VMX register state
powerpc/tm: Fix FP and VMX register corruption
powerpc/modules: If mprofile-kernel is enabled add it to vermagic
Radim Krčmář [Thu, 18 May 2017 17:37:32 +0000 (19:37 +0200)]
KVM: x86: prevent uninitialized variable warning in check_svme()
get_msr() of MSR_EFER is currently always going to succeed, but static
checker doesn't see that far.
Don't complicate stuff and just use 0 for the fallback -- it means that
the feature is not present.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Radim Krčmář [Thu, 18 May 2017 17:37:31 +0000 (19:37 +0200)]
KVM: x86/vPMU: fix undefined shift in intel_pmu_refresh()
Static analysis noticed that pmu->nr_arch_gp_counters can be 32
(INTEL_PMC_MAX_GENERIC) and therefore cannot be used to shift 'int'.
I didn't add BUILD_BUG_ON for it as we have a better checker.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes:
25462f7f5295 ("KVM: x86/vPMU: Define kvm_pmu_ops to support vPMU function dispatch")
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Radim Krčmář [Thu, 18 May 2017 17:37:30 +0000 (19:37 +0200)]
KVM: x86: zero base3 of unusable segments
Static checker noticed that base3 could be used uninitialized if the
segment was not present (useable). Random stack values probably would
not pass VMCS entry checks.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes:
1aa366163b8b ("KVM: x86 emulator: consolidate segment accessors")
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Wanpeng Li [Fri, 19 May 2017 09:46:56 +0000 (02:46 -0700)]
KVM: X86: Fix read out-of-bounds vulnerability in kvm pio emulation
Huawei folks reported a read out-of-bounds vulnerability in kvm pio emulation.
- "inb" instruction to access PIT Mod/Command register (ioport 0x43, write only,
a read should be ignored) in guest can get a random number.
- "rep insb" instruction to access PIT register port 0x43 can control memcpy()
in emulator_pio_in_emulated() to copy max 0x400 bytes but only read 1 bytes,
which will disclose the unimportant kernel memory in host but no crash.
The similar test program below can reproduce the read out-of-bounds vulnerability:
void hexdump(void *mem, unsigned int len)
{
unsigned int i, j;
for(i = 0; i < len + ((len % HEXDUMP_COLS) ? (HEXDUMP_COLS - len % HEXDUMP_COLS) : 0); i++)
{
/* print offset */
if(i % HEXDUMP_COLS == 0)
{
printf("0x%06x: ", i);
}
/* print hex data */
if(i < len)
{
printf("%02x ", 0xFF & ((char*)mem)[i]);
}
else /* end of block, just aligning for ASCII dump */
{
printf(" ");
}
/* print ASCII dump */
if(i % HEXDUMP_COLS == (HEXDUMP_COLS - 1))
{
for(j = i - (HEXDUMP_COLS - 1); j <= i; j++)
{
if(j >= len) /* end of block, not really printing */
{
putchar(' ');
}
else if(isprint(((char*)mem)[j])) /* printable char */
{
putchar(0xFF & ((char*)mem)[j]);
}
else /* other char */
{
putchar('.');
}
}
putchar('\n');
}
}
}
int main(void)
{
int i;
if (iopl(3))
{
err(1, "set iopl unsuccessfully\n");
return -1;
}
static char buf[0x40];
/* test ioport 0x40,0x41,0x42,0x43,0x44,0x45 */
memset(buf, 0xab, sizeof(buf));
asm volatile("push %rdi;");
asm volatile("mov %0, %%rdi;"::"q"(buf));
asm volatile ("mov $0x40, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("mov $0x41, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("mov $0x42, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("mov $0x43, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("mov $0x44, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("mov $0x45, %rdx;");
asm volatile ("in %dx,%al;");
asm volatile ("stosb;");
asm volatile ("pop %rdi;");
hexdump(buf, 0x40);
printf("\n");
/* ins port 0x40 */
memset(buf, 0xab, sizeof(buf));
asm volatile("push %rdi;");
asm volatile("mov %0, %%rdi;"::"q"(buf));
asm volatile ("mov $0x20, %rcx;");
asm volatile ("mov $0x40, %rdx;");
asm volatile ("rep insb;");
asm volatile ("pop %rdi;");
hexdump(buf, 0x40);
printf("\n");
/* ins port 0x43 */
memset(buf, 0xab, sizeof(buf));
asm volatile("push %rdi;");
asm volatile("mov %0, %%rdi;"::"q"(buf));
asm volatile ("mov $0x20, %rcx;");
asm volatile ("mov $0x43, %rdx;");
asm volatile ("rep insb;");
asm volatile ("pop %rdi;");
hexdump(buf, 0x40);
printf("\n");
return 0;
}
The vcpu->arch.pio_data buffer is used by both in/out instrutions emulation
w/o clear after using which results in some random datas are left over in
the buffer. Guest reads port 0x43 will be ignored since it is write only,
however, the function kernel_pio() can't distigush this ignore from successfully
reads data from device's ioport. There is no new data fill the buffer from
port 0x43, however, emulator_pio_in_emulated() will copy the stale data in
the buffer to the guest unconditionally. This patch fixes it by clearing the
buffer before in instruction emulation to avoid to grant guest the stale data
in the buffer.
In addition, string I/O is not supported for in kernel device. So there is no
iteration to read ioport %RCX times for string I/O. The function kernel_pio()
just reads one round, and then copy the io size * %RCX to the guest unconditionally,
actually it copies the one round ioport data w/ other random datas which are left
over in the vcpu->arch.pio_data buffer to the guest. This patch fixes it by
introducing the string I/O support for in kernel device in order to grant the right
ioport datas to the guest.
Before the patch:
0x000000: fe 38 93 93 ff ff ab ab .8......
0x000008: ab ab ab ab ab ab ab ab ........
0x000010: ab ab ab ab ab ab ab ab ........
0x000018: ab ab ab ab ab ab ab ab ........
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
0x000000: f6 00 00 00 00 00 00 00 ........
0x000008: 00 00 00 00 00 00 00 00 ........
0x000010: 00 00 00 00 4d 51 30 30 ....MQ00
0x000018: 30 30 20 33 20 20 20 20 00 3
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
0x000000: f6 00 00 00 00 00 00 00 ........
0x000008: 00 00 00 00 00 00 00 00 ........
0x000010: 00 00 00 00 4d 51 30 30 ....MQ00
0x000018: 30 30 20 33 20 20 20 20 00 3
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
After the patch:
0x000000: 1e 02 f8 00 ff ff ab ab ........
0x000008: ab ab ab ab ab ab ab ab ........
0x000010: ab ab ab ab ab ab ab ab ........
0x000018: ab ab ab ab ab ab ab ab ........
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
0x000000: d2 e2 d2 df d2 db d2 d7 ........
0x000008: d2 d3 d2 cf d2 cb d2 c7 ........
0x000010: d2 c4 d2 c0 d2 bc d2 b8 ........
0x000018: d2 b4 d2 b0 d2 ac d2 a8 ........
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
0x000000: 00 00 00 00 00 00 00 00 ........
0x000008: 00 00 00 00 00 00 00 00 ........
0x000010: 00 00 00 00 00 00 00 00 ........
0x000018: 00 00 00 00 00 00 00 00 ........
0x000020: ab ab ab ab ab ab ab ab ........
0x000028: ab ab ab ab ab ab ab ab ........
0x000030: ab ab ab ab ab ab ab ab ........
0x000038: ab ab ab ab ab ab ab ab ........
Reported-by: Moguofang <moguofang@huawei.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Moguofang <moguofang@huawei.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Wanpeng Li [Fri, 12 May 2017 01:12:05 +0000 (18:12 -0700)]
KVM: x86: Fix potential preemption when get the current kvmclock timestamp
BUG: using __this_cpu_read() in preemptible [
00000000] code: qemu-system-x86/2809
caller is __this_cpu_preempt_check+0x13/0x20
CPU: 2 PID: 2809 Comm: qemu-system-x86 Not tainted 4.11.0+ #13
Call Trace:
dump_stack+0x99/0xce
check_preemption_disabled+0xf5/0x100
__this_cpu_preempt_check+0x13/0x20
get_kvmclock_ns+0x6f/0x110 [kvm]
get_time_ref_counter+0x5d/0x80 [kvm]
kvm_hv_process_stimers+0x2a1/0x8a0 [kvm]
? kvm_hv_process_stimers+0x2a1/0x8a0 [kvm]
? kvm_arch_vcpu_ioctl_run+0xac9/0x1ce0 [kvm]
kvm_arch_vcpu_ioctl_run+0x5bf/0x1ce0 [kvm]
kvm_vcpu_ioctl+0x384/0x7b0 [kvm]
? kvm_vcpu_ioctl+0x384/0x7b0 [kvm]
? __fget+0xf3/0x210
do_vfs_ioctl+0xa4/0x700
? __fget+0x114/0x210
SyS_ioctl+0x79/0x90
entry_SYSCALL_64_fastpath+0x23/0xc2
RIP: 0033:0x7f9d164ed357
? __this_cpu_preempt_check+0x13/0x20
This can be reproduced by run kvm-unit-tests/hyperv_stimer.flat w/
CONFIG_PREEMPT and CONFIG_DEBUG_PREEMPT enabled.
Safe access to per-CPU data requires a couple of constraints, though: the
thread working with the data cannot be preempted and it cannot be migrated
while it manipulates per-CPU variables. If the thread is preempted, the
thread that replaces it could try to work with the same variables; migration
to another CPU could also cause confusion. However there is no preemption
disable when reads host per-CPU tsc rate to calculate the current kvmclock
timestamp.
This patch fixes it by utilizing get_cpu/put_cpu pair to guarantee both
__this_cpu_read() and rdtsc() are not preempted.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Shaohua Li [Fri, 19 May 2017 15:04:59 +0000 (08:04 -0700)]
blktrace: fix integer parse
sscanf is a very poor way to parse integer. For example, I input
"discard" for act_mask, it gets 0xd and completely messes up. Using
correct API to do integer parse.
This patch also makes attributes accept any base of integer.
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Ard Biesheuvel [Fri, 19 May 2017 08:56:40 +0000 (09:56 +0100)]
i2c: designware: don't infer timings described by ACPI from clock rate
Commit
bd698d24b1b57 ("i2c: designware: Get selected speed mode
sda-hold-time via ACPI") updated the logic that reads the timing
parameters for various I2C bus rates from the DSDT, to only read
the timing parameters for the currently selected mode.
This causes a WARN_ON() splat on platforms that legally omit the clock
frequency from the ACPI description, because in the new situation, the
core I2C designware driver still accesses the fields in the driver
struct that we no longer populate, and proceeds to calculate them from
the clock frequency. Since the clock frequency is unspecified, the
driver complains loudly using a WARN_ON().
So revert back to the old situation, where the struct fields for all
timings are populated, but retain the new logic which chooses the SDA
hold time from the timing mode that is currently in use.
Fixes:
bd698d24b1b57 ("i2c: designware: Get selected speed mode ...")
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reported-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Arnd Bergmann [Fri, 19 May 2017 12:12:00 +0000 (14:12 +0200)]
arm64: dts: rockchip: fix include reference
The way we handle include paths for DT has changed a bit, which
broke a file that had an unconventional way to reference a common
header file:
arch/arm64/boot/dts/rockchip/rk3399-gru-kevin.dts:47:10: fatal error: include/dt-bindings/input/linux-event-codes.h: No such file or directory
This removes the leading "include/" from the path name, which fixes it.
Fixes:
d5d332d3f7e8 ("devicetree: Move include prefixes from arch to separate directory")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Eric Anholt [Fri, 28 Apr 2017 01:02:32 +0000 (18:02 -0700)]
watchdog: bcm281xx: Fix use of uninitialized spinlock.
The bcm_kona_wdt_set_resolution_reg() call takes the spinlock, so
initialize it earlier. Fixes a warning at boot with lock debugging
enabled.
Fixes:
6adb730dc208 ("watchdog: bcm281xx: Watchdog Driver")
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Wei Yongjun [Tue, 25 Apr 2017 16:17:33 +0000 (16:17 +0000)]
watchdog: zx2967: remove redundant dev_err call in zx2967_wdt_probe()
There is a error message within devm_ioremap_resource
already, so remove the dev_err call to avoid redundant
error message.
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Paolo Bonzini [Wed, 5 Apr 2017 11:41:15 +0000 (13:41 +0200)]
iTCO_wdt: all versions count down twice
The ICH9 is listed as having TCO v2, and indeed the behavior in the
datasheet corresponds to v2 (for example the NO_REBOOT flag is
accessible via the 16KiB-aligned Root Complex Base Address).
However, the TCO counts twice just like in v1; the documentation
of the SECOND_TO_STS bit says: "ICH9 sets this bit to 1 to indicate
that the TIMEOUT bit had been (or is currently) set and a second
timeout occurred before the TCO_RLD register was written. If this
bit is set and the NO_REBOOT config bit is 0, then the ICH9 will
reboot the system after the second timeout. The same can be found
in the BayTrail (Atom E3800) datasheet, and even HOWTOs around
the Internet say that it will reboot after _twice_ the specified
heartbeat.
I did not find the Apollo Lake datasheet, but because v4/v5 has
a SECOND_TO_STS bit just like the previous version I'm enabling
this for Apollo Lake as well.
Cc: linux-watchdog@vger.kernel.org
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Arnd Bergmann [Wed, 11 Jan 2017 11:53:05 +0000 (12:53 +0100)]
firmware: ti_sci: fix strncat length check
gcc-7 notices that the length we pass to strncat is wrong:
drivers/firmware/ti_sci.c: In function 'ti_sci_probe':
drivers/firmware/ti_sci.c:204:32: error: specified bound 50 equals the size of the destination [-Werror=stringop-overflow=]
Instead of the total length, we must pass the length of the
remaining space here.
Fixes:
aa276781a64a ("firmware: Add basic support for TI System Control Interface (TI-SCI) protocol")
Cc: stable@vger.kernel.org
Acked-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Arnd Bergmann [Thu, 11 May 2017 11:50:16 +0000 (13:50 +0200)]
ARM: remove duplicate 'const' annotations'
gcc-7 warns about some declarations that are more 'const' than necessary:
arch/arm/mach-at91/pm.c:338:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
static const struct of_device_id const ramc_ids[] __initconst = {
arch/arm/mach-bcm/bcm_kona_smc.c:36:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
static const struct of_device_id const bcm_kona_smc_ids[] __initconst = {
arch/arm/mach-spear/time.c:207:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
static const struct of_device_id const timer_of_match[] __initconst = {
arch/arm/mach-omap2/prm_common.c:714:34: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
static const struct of_device_id const omap_prcm_dt_match_table[] __initconst = {
arch/arm/mach-omap2/vc.c:562:35: error: duplicate 'const' declaration specifier [-Werror=duplicate-decl-specifier]
static const struct i2c_init_data const omap4_i2c_timing_data[] __initconst = {
The ones in arch/arm were apparently all introduced accidentally by one
commit that correctly marked a lot of variables as __initconst.
Fixes:
19c233b79d1a ("ARM: appropriate __init annotation for const data")
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Greg Kroah-Hartman [Fri, 19 May 2017 08:10:07 +0000 (10:10 +0200)]
Merge tag 'usb-serial-4.12-rc2' of git://git./linux/kernel/git/johan/usb-serial into usb-linus
Johan writes:
USB-serial fixes for v4.12-rc2
Here's a fix for a long-standing issue in the ftdi_sio driver that
prevented unprivileged users from updating the low-latency flag,
something which became apparent after a recent change that restored the
older setting of not using low-latency mode by default.
A run of sparse revealed a couple of endianness issues that are now
fixed, and addressed is also a user-triggerable division-by-zero in
io_ti when debugging is enabled.
Finally there are some new device ids, including a simplification of how
we deal with a couple of older Olimex JTAG adapters.
All have been in linux-next with no reported issues.
Signed-off-by: Johan Hovold <johan@kernel.org>
Olof Johansson [Fri, 19 May 2017 07:02:16 +0000 (00:02 -0700)]
Merge tag 'omap-for-v4.12/fixes-v2-signed' of git://git./linux/kernel/git/tmlind/linux-omap into fixes
Fixes for omaps for v4.12-rc cycle most consisting of few minor dts fixes
for various devices. Also included is a memory controller (GPMC) debug output
fix as without that the shown bootloader configured GPMC bus width will
be wrong and won't work for kernel timings:
- Add dra7 powerhold configuration to be able to shut down pmic correctly
- Fix polarity for gta04 mcbsp4 clocks for modem
- Fix Pandaboard CEC pin pull making it usable
- Fix LogicPD Torpedo camera pin mux
- Fix GPMC debug bus width
- Reduce cpu thermal shutdown temperature
* tag 'omap-for-v4.12/fixes-v2-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: dra7: Reduce cpu thermal shutdown temperature
memory: omap-gpmc: Fix debug output for access width
ARM: dts: LogicPD Torpedo: Fix camera pin mux
ARM: dts: omap4: enable CEC pin for Pandaboard A4 and ES
ARM: dts: gta04: fix polarity of clocks for mcbsp4
ARM: dts: dra7: Add power hold and power controller properties to palmas
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Fri, 19 May 2017 07:02:04 +0000 (00:02 -0700)]
Merge tag 'imx-fixes-4.12' of git://git./linux/kernel/git/shawnguo/linux into fixes
i.MX fixes for 4.12:
- A fix on GPCv2 power domain driver Kconfig which causes a build
failure when CONFIG_PM is not set.
- Pull down PMIC IRQ pin for imx53-qsrb board to prevent spurious
PMIC interrupts from happening.
- Remove board level OPP override for imx6sx-sdb to fix a boot crash
seen on Rev.C boards.
* tag 'imx-fixes-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
soc: imx: add PM dependency for IMX7_PM_DOMAINS
ARM: dts: imx6sx-sdb: Remove OPP override
ARM: dts: imx53-qsrb: Pulldown PMIC IRQ pin
Signed-off-by: Olof Johansson <olof@lixom.net>
Rob Herring [Wed, 17 May 2017 21:52:30 +0000 (16:52 -0500)]
arm64: defconfig: enable options needed for QCom DB410c board
Enable Qualcomm drivers needed to boot Dragonboard 410c with HDMI. This
enables support for clocks, regulators, and USB PHY.
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Rob Herring <robh@kernel.org>
[Olof: Turned off _RPM configs per follow-up email]
Signed-off-by: Olof Johansson <olof@lixom.net>
Rob Herring [Wed, 17 May 2017 21:52:29 +0000 (16:52 -0500)]
arm64: defconfig: sync with savedefconfig
Sync the defconfig with savedefconfig as config options change/move over
time.
Generated with the following commands:
make defconfig
make savedefconfig
cp defconfig arch/arm64/configs/defconfig
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Linus Walleij [Sun, 14 May 2017 21:45:02 +0000 (23:45 +0200)]
ARM: configs: add a gemini defconfig
It makes sense to have a stripped-down defconfig for just Gemini, as
it is a pretty small platform used in NAS etc, and will use appended
device tree. It is also quick to compile and test. Hopefully this
defconfig can be a good base for distributions such as OpenWRT.
I plan to add in the config options needed for the different
variants of Gemini as we go along.
Cc: Janos Laube <janos.dev@gmail.com>
Cc: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Fri, 19 May 2017 06:56:26 +0000 (23:56 -0700)]
Merge tag 'arm-soc/for-4.12/drivers-fixes' of github.com/Broadcom/stblinux into fixes
This pull request contains Broadcom SoC drivers fixes for 4.12, please
pull the following:
- Florian removes the duplicate compatible string matched by the
SUN_TOP_CTRL driver and instead uses the correct one for 7435
* tag 'arm-soc/for-4.12/drivers-fixes' of http://github.com/Broadcom/stblinux:
soc: bcm: brcmstb: Correctly match 7435 SoC
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Fri, 19 May 2017 06:55:53 +0000 (23:55 -0700)]
Merge tag 'arm-soc/for-4.12/devicetree-fixes' of github.com/Broadcom/stblinux into fixes
This pull request contains Broadcom ARM-based SoC Device Tree fixes for
4.12, please pull the following:
- Baruch provides several fixes for the Raspberry Pi (BCM2835) Device
Tree source include file: uart0 pinctrl node names, pin number for
i2c0, uart0 rts/cts pins and invalid uart1 pin, missing numbers for
ethernet aliases
* tag 'arm-soc/for-4.12/devicetree-fixes' of http://github.com/Broadcom/stblinux:
ARM: dts: bcm2835: add index to the ethernet alias
ARM: dts: bcm2835: fix uart0/uart1 pins
ARM: dts: bcm2835: fix i2c0 pins
ARM: dts: bcm2835: fix uart0 pinctrl node names
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Sat, 13 May 2017 03:13:26 +0000 (20:13 -0700)]
devicetree: Move include prefixes from arch to separate directory
We use a directory under arch/$ARCH/boot/dts as an include path
that has links outside of the subtree to find dt-bindings from under
include/dt-bindings. That's been working well, but new DT architectures
haven't been adding them by default.
Recently there's been a desire to share some of the DT material between
arm and arm64, which originally caused developers to create symlinks or
relative includes between the subtrees. This isn't ideal -- it breaks
if the DT files aren't stored in the exact same hierarchy as the kernel
tree, and generally it's just icky.
As a somewhat cleaner solution we decided to add a $ARCH/ prefix link
once, and allow DTS files to reference dtsi (and dts) files in other
architectures that way.
Original approach was to create these links under each architecture,
but it lead to the problem of recursive symlinks.
As a remedy, move the include link directories out of the architecture
trees into a common location. At the same time, they can now share one
directory and one dt-bindings/ link as well.
Fixes:
4027494ae6e3 ('ARM: dts: add arm/arm64 include symlinks')
Reported-by: Russell King <linux@armlinux.org.uk>
Reported-by: Omar Sandoval <osandov@osandov.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Rob Herring <robh@kernel.org>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: linux-arch <linux-arch@vger.kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Fri, 19 May 2017 06:54:47 +0000 (23:54 -0700)]
Merge tag 'v4.12-rc1' into fixes
We've received a few fixes branches with -rc1 as base, but our contents was
still at pre-rc1. Merge it in expliticly to make 'git merge --log' clear on
hat was actually merged.
Signed-off-by: Olof Johansson <olof@lixom.net>
Juergen Gross [Thu, 18 May 2017 15:46:48 +0000 (17:46 +0200)]
xen: make xen_flush_tlb_all() static
xen_flush_tlb_all() is used in arch/x86/xen/mmu.c only. Make it static.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Juergen Gross [Tue, 16 May 2017 07:41:06 +0000 (09:41 +0200)]
xen: cleanup pvh leftovers from pv-only sources
There are some leftovers testing for pvh guest mode in pv-only source
files. Remove them.
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Steven Rostedt (VMware) [Fri, 12 May 2017 17:15:45 +0000 (13:15 -0400)]
tracing: Make sure RCU is watching before calling a stack trace
As stack tracing now requires "rcu watching", force RCU to be watching when
recording a stack trace.
Link: http://lkml.kernel.org/r/20170512172449.879684501@goodmis.org
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Michael Ellerman [Thu, 18 May 2017 10:37:31 +0000 (20:37 +1000)]
powerpc/mm: Fix virt_addr_valid() etc. on 64-bit hash
virt_addr_valid() is supposed to tell you if it's OK to call virt_to_page() on
an address. What this means in practice is that it should only return true for
addresses in the linear mapping which are backed by a valid PFN.
We are failing to properly check that the address is in the linear mapping,
because virt_to_pfn() will return a valid looking PFN for more or less any
address. That bug is actually caused by __pa(), used in virt_to_pfn().
eg: __pa(0xc000000000010000) = 0x10000 # Good
__pa(0xd000000000010000) = 0x10000 # Bad!
__pa(0x0000000000010000) = 0x10000 # Bad!
This started happening after commit
bdbc29c19b26 ("powerpc: Work around gcc
miscompilation of __pa() on 64-bit") (Aug 2013), where we changed the definition
of __pa() to work around a GCC bug. Prior to that we subtracted PAGE_OFFSET from
the value passed to __pa(), meaning __pa() of a 0xd or 0x0 address would give
you something bogus back.
Until we can verify if that GCC bug is no longer an issue, or come up with
another solution, this commit does the minimal fix to make virt_addr_valid()
work, by explicitly checking that the address is in the linear mapping region.
Fixes:
bdbc29c19b26 ("powerpc: Work around gcc miscompilation of __pa() on 64-bit")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
Tested-by: Breno Leitao <breno.leitao@gmail.com>
Dave Airlie [Fri, 19 May 2017 00:23:14 +0000 (10:23 +1000)]
Merge tag 'drm-intel-fixes-2017-05-18-1' of git://anongit.freedesktop.org/git/drm-intel into drm-fixes
drm/i915 fixes for v4.12-rc2
* tag 'drm-intel-fixes-2017-05-18-1' of git://anongit.freedesktop.org/git/drm-intel:
drm/i915: don't do allocate_va_range again on PIN_UPDATE
drm/i915: Fix rawclk readout for g4x
drm/i915: Fix runtime PM for LPE audio
drm/i915/glk: Fix DSI "*ERROR* ULPS is still active" messages
drm/i915/gvt: avoid unnecessary vgpu switch
drm/i915/gvt: not to restore in-context mmio
drm/i915/gvt: fix typo: "supporte" -> "support"
Dave Airlie [Fri, 19 May 2017 00:21:41 +0000 (10:21 +1000)]
Merge branch 'linux-4.12' of git://github.com/skeggsb/linux into drm-fixes
misc nouveau fixes.
* 'linux-4.12' of git://github.com/skeggsb/linux:
drm/nouveau/fifo/gk104-: Silence a locking warning
drm/nouveau/secboot: plug memory leak in ls_ucode_img_load_gr() error path
drm/nouveau: Fix drm poll_helper handling
Dave Airlie [Fri, 19 May 2017 00:20:53 +0000 (10:20 +1000)]
Merge tag 'drm-misc-fixes-2017-05-18' of git://anongit.freedesktop.org/git/drm-misc into drm-fixes
Driver Changes:
- host1x: Fix link error when host1x is built-in and iova is a module (Arnd)
- hlcdc: Fix arguments passed to drm_of_find_panel_or_bridge (Boris)
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
* tag 'drm-misc-fixes-2017-05-18' of git://anongit.freedesktop.org/git/drm-misc:
drm/atmel-hlcdc: Fix output initialization
gpu: host1x: select IOMMU_IOVA
Dave Airlie [Fri, 19 May 2017 00:16:06 +0000 (10:16 +1000)]
Merge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm-fixes
one etnaviv fence leak fix.
* 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux:
drm/etnaviv: don't put fence in case of submit failure
Linus Torvalds [Thu, 18 May 2017 19:04:41 +0000 (12:04 -0700)]
Merge tag 'md/4.12-rc2' of git://git./linux/kernel/git/shli/md
Pull MD fixes from Shaohua Li:
- Several bug fixes for raid5-cache from Song Liu, mainly handle
journal disk error
- Fix bad block handling in choosing raid1 disk from Tomasz Majchrzak
- Simplify external metadata array sysfs handling from Artur
Paszkiewicz
- Optimize raid0 discard handling from me, now raid0 will dispatch
large discard IO directly to underlayer disks.
* tag 'md/4.12-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
raid1: prefer disk without bad blocks
md/r5cache: handle sync with data in write back cache
md/r5cache: gracefully handle journal device errors for writeback mode
md/raid1/10: avoid unnecessary locking
md/raid5-cache: in r5l_do_submit_io(), submit io->split_bio first
md/md0: optimize raid0 discard handling
md: don't return -EAGAIN in md_allow_write for external metadata arrays
md/raid5: make use of spin_lock_irq over local_irq_disable + spin_lock
Wei Yongjun [Thu, 18 May 2017 15:22:41 +0000 (15:22 +0000)]
xen/9pfs: p9_trans_xen_init and p9_trans_xen_exit can be static
Fixes the following sparse warnings:
net/9p/trans_xen.c:528:5: warning:
symbol 'p9_trans_xen_init' was not declared. Should it be static?
net/9p/trans_xen.c:540:6: warning:
symbol 'p9_trans_xen_exit' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Wei Yongjun [Tue, 16 May 2017 14:22:47 +0000 (14:22 +0000)]
xen/9pfs: fix return value check in xen_9pfs_front_probe()
In case of error, the function xenbus_read() returns ERR_PTR() and never
returns NULL. The NULL test in the return value check should be replaced
with IS_ERR().
Fixes:
71ebd71921e4 ("xen/9pfs: connect to the backend")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Linus Torvalds [Thu, 18 May 2017 18:40:21 +0000 (11:40 -0700)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
1) Don't allow negative TCP reordering values, from Soheil Hassas
Yeganeh.
2) Don't overflow while parsing ipv6 header options, from Craig Gallek.
3) Handle more cleanly the case where an individual route entry during
a dump will not fit into the allocated netlink SKB, from David
Ahern.
4) Add missing CONFIG_INET dependency for mlx5e, from Arnd Bergmann.
5) Allow neighbour updates to converge more quickly via gratuitous
ARPs, from Ihar Hrachyshka.
6) Fix compile error from CONFIG_INET is disabled, from Eric Dumazet.
7) Fix use after free in x25 protocol init, from Lin Zhang.
8) Valid VLAN pvid ranges passed into br_validate(), from Tobias
Jungel.
9) NULL out address lists in child sockets in SCTP, this is similar to
the fix we made for inet connection sockets last week. From Eric
Dumazet.
10) Fix NULL deref in mlxsw driver, from Ido Schimmel.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (27 commits)
mlxsw: spectrum: Avoid possible NULL pointer dereference
sh_eth: Do not print an error message for probe deferral
sh_eth: Use platform device for printing before register_netdev()
mlxsw: spectrum_router: Fix rif counter freeing routine
mlxsw: spectrum_dpipe: Fix incorrect entry index
cxgb4: update latest firmware version supported
qmi_wwan: add another Lenovo EM74xx device ID
sctp: do not inherit ipv6_{mc|ac|fl}_list from parent
udp: make *udp*_queue_rcv_skb() functions static
bridge: netlink: check vlan_default_pvid range
net: ethernet: faraday: To support device tree usage.
net: x25: fix one potential use-after-free issue
bpf: adjust verifier heuristics
ipv6: Check ip6_find_1stfragopt() return value properly.
selftests/bpf: fix broken build due to types.h
bnxt_en: Check status of firmware DCBX agent before setting DCB_CAP_DCBX_HOST.
bnxt_en: Call bnxt_dcb_init() after getting firmware DCBX configuration.
net: fix compile error in skb_orphan_partial()
ipv6: Prevent overrun when parsing v6 header options
neighbour: update neigh timestamps iff update is effective
...
Linus Torvalds [Thu, 18 May 2017 18:21:10 +0000 (11:21 -0700)]
Merge git://git./linux/kernel/git/davem/sparc
Pull sparc fixes from David Miller:
"Three sparc bug fixes"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc/ftrace: Fix ftrace graph time measurement
sparc: Fix -Wstringop-overflow warning
sparc64: Fix mapping of 64k pages with MAP_FIXED
Linus Torvalds [Thu, 18 May 2017 18:17:34 +0000 (11:17 -0700)]
Merge tag 'kbuild-fixes-v4.12' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fix from Masahiro Yamada:
"Fix headers_install to not delete pre-existing headers in the install
destination"
* tag 'kbuild-fixes-v4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: skip install/check of headers right under uapi directories
Linus Torvalds [Thu, 18 May 2017 17:04:42 +0000 (10:04 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ebiederm/user-namespace
Pull pid namespace fixes from Eric Biederman:
"These are two bugs that turn out to have simple fixes that were
reported during the merge window. Both of these issues have existed
for a while and it just happens that they both were reported at almost
the same time"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
pid_ns: Fix race between setns'ed fork() and zap_pid_ns_processes()
pid_ns: Sleep in TASK_INTERRUPTIBLE in zap_pid_ns_processes
Shile Zhang [Mon, 10 Apr 2017 14:39:33 +0000 (22:39 +0800)]
watchdog: wdt_pci: fix build error if define SOFTWARE_REBOOT
To fix following build error when SOFTWARE_REBOOT is defined:
CC [M] driver/watchdog/wdt_pci.o
driver/watchdog/wdt_pci.c: In function 'wdtpci_interrupt':
driver/watchdog/wdt_pci.c:335:3: error: too many arguments to function 'emergency_restart'
emergency_restart(NULL);
^
In file included from driver/watchdog/wdt_pci.c:51:0:
include/linux/reboot.h:80:13: note: declared here
extern void emergency_restart(void);
^
Signed-off-by: Shile Zhang <shile.zhang@nokia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Tomas Melin [Mon, 20 Mar 2017 07:29:31 +0000 (09:29 +0200)]
watchdog: cadence_wdt: fix timeout setting
wdt_timeout must not be initialized to CDNS_WDT_DEFAULT_TIMEOUT in
order to allow the value to be overriddden by a device tree setting.
This way, the default timeout value will be used only in case module_param
has not been set, or device tree timeout-sec has not been defined.
Signed-off-by: Tomas Melin <tomas.melin@vaisala.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Johan Hovold [Mon, 13 Mar 2017 12:49:45 +0000 (13:49 +0100)]
watchdog: pcwd_usb: fix NULL-deref at probe
Make sure to check the number of endpoints to avoid dereferencing a
NULL-pointer should a malicious device lack endpoints.
Fixes:
1da177e4c3f4 ("Linux-2.6.12-rc2")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Alexandre Belloni [Thu, 2 Mar 2017 17:31:12 +0000 (18:31 +0100)]
watchdog: sama5d4: fix race condition
WDT_MR and WDT_CR must not updated within three slow clock periods after
the last ping (write to WDT_CR or WDT_MR). Ensure enough time has elapsed
before writing those registers.
wdt_write() waits for 4 periods to ensure at least 3 edges are seen by the
IP.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Wenyou.Yang <wenyou.yang@microchip.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>